This is the original Myth II Metaserver source code released by Bungie Studios. An updated version of the metaserver source code is available here.

Original release notes:

Want to be an admin? Go for it! Want to make your own ranking system? Everything you need to do so is here. Have a yen for a custom WW2 server? You can make it!

This is the raw Myth II metaserver source code, stripped of a few proprietary bits of code, but still run-able. You can modify it in any way you want and use it for most anything you want. The only real conditions are that you don't then try to sell it and that you leave all the copyright and other legal notices with the code. Be sure to read the short, but very legal license agreement that comes with it before going nuts, but afterwards, go nuts.